1964 and 1968 had a built-in 0.05 second delay, meaning Hayes' FAT time was measured as 10.01 seconds, which was rounded to 10.0 seconds for official purposes (despite the fact that officials with stopwatches had timed Hayes at 9.9 seconds). The currently understood time of 10.06 has been determined by adding the 0.05 seconds delay back in. The same adjustment has been made to the 1968 Olympics FAT times; Jim Hines' winning time for the 100 meters was measured as 9.89 seconds, which was subsequently adjusted to 9.95 seconds. In 1972, having provided the official timing equipment since 1932, Omega lost the right to be the official timer for the Olympics to Longines. Omega returned for the 1976 Olympics. This was the first Olympics where official results were given to the nearest 1/100 seconds. Later iterations of photo finish system began using film to record and display times, including AccuTrack that used slit technology to record images over time at the finish line to Polaroid Instant Film. Accutrack was the most popular photo-finish camera in the United States in the late 1980s and into the early 1990s, but there were some limitations to the film based cameras (the film was advanced on a carriage that would sometimes jam, the width of film limited the amount of data—and thus times that could be captured, etc.) and this led to occasional failures during use. References Sports officiating technology Timekeeping Sport of athletics terminology